Ruth's physician informs her husband that a single dominant gene on chromosome 4 is transmitting Ruth's condition.He also said that it is likely that one of her parents had the gene, which made gave her a 50 percent chance to inherit the gene.Ruth' major symptoms include NCD and chorea-irregular jerks, grimaces, and twitches.Which disease is Ruth's physician most likely referring to?
A)Huntington's disease
B)Parkinson's disease
C)Alzheimer's disease
D)Prion disease

Question

Quizplus · Accepted Answer

The symptoms described, including chorea (irregular jerks, grimaces, and twitches), are classic signs of Huntington's disease. The fact that it is a single dominant gene on chromosome 4 suggests that this is the likely diagnosis. Additionally, the statement about a 50 percent chance of inheriting the gene is consistent with the inheritance pattern of Huntington's disease. Parkinson's disease, Alzheimer's disease, and prion diseases do not typically present with chorea.

Ruth's Physician Informs Her Husband That a Single Dominant Gene